The Justice Department sued four Democratic-led states after they barred undercover license plates for federal immigration agents, saying the bans jeopardize officer safety and violate the Supremacy Clause.
The Department of Justice filed suits against Maine, Massachusetts, Oregon, and Washington after those states continued to issue confidential plates to their own law enforcement while denying them to federal immigration agencies. The DOJ says that disparity is unconstitutional and places federal officers and their families at risk. All four states received formal warning letters from the Civil Division on May 12 and declined to reverse the policies.
Acting Attorney General Todd Blanche framed the move as a matter of both safety and constitutional order rather than a bureaucratic spat. The Civil Division says the states’ selective policies obstruct federal operations and create an uneven playing field for investigations. The litigation is the next step after the formal warnings failed to change state practices.
Until recently, the four states sometimes issued undercover plates to federal agents, but each adopted new restrictions within the past year that single out immigration enforcement. The rules differ by state: some bar plates for any federal agency, others exclude specific DHS components, and one demands an attestation that plates won’t be used for civil immigration work. The common result is the same—federal immigration officers lose covert mobility that state and local counterparts retain.
That operational gap is the DOJ’s constitutional gripe. Assistant Attorney General Brett A. Shumate warned that federal officers need covert tools to pursue drug trafficking, weapons trafficking, human trafficking, terrorism, and fraud. Without confidential plates, agents become easier to track to homes or safe locations, suspects can flee or destroy evidence, and protective operations are compromised.
“This Department of Justice will exercise any and all lawful authorities to support the brave men and women of law enforcement. Law enforcement officers risk their lives every day to keep Americans safe and must be able to carry out their duties effectively. By denying undercover license plates to DHS components, including ICE, while issuing them to their own state agencies, these governors are pursuing discriminatory and obstructionist policies against federal law enforcement. These actions undermine federal immigration enforcement, allow dangerous criminals to escape justice, and terrorize American communities.”
Shumate echoed the point and framed the legal theory behind the suits as clear and limited: the Supremacy Clause bars states from obstructing or discriminating against federal law enforcement. He underlined the department’s resolve in a direct line that ties operational effectiveness to constitutional obligation.
“will steadfastly protect the operational effectiveness and safety of law enforcement from these unconstitutional state policies.”
The DOJ asks courts to declare the state restrictions unconstitutional and to order that undercover plates be made available to federal agencies on equal terms with state and local law enforcement. That relief would explicitly include Homeland Security Investigations, ICE, and Customs and Border Protection among the agencies entitled to confidential registration. The department casts the suits as part of a broader enforcement strategy to challenge state policies that impede federal law enforcement.
The states defend their rules as resistance to civil immigration enforcement tactics rather than a blanket ban on covert operations. Their officials say the measures are designed to prevent what they describe as abusive or unconstitutional federal practices, and insist criminal investigations remain eligible for confidential plates. Those qualifications make the dispute narrowly tailored to immigration-related work rather than an across-the-board denial of undercover status.
“There are no secret police in a democracy and we will always stand up for our Mainers’ safety and freedom.”
Other state leaders have used similar language to distinguish criminal from civil immigration activity and to reject cooperation when removal proceedings are involved. That rhetoric intentionally frames federal immigration enforcement as different in kind, which is exactly what the DOJ challenges as unlawful selective treatment. The department’s position is not about policy preferences—it is about whether states can pick and choose which federal missions get the tools necessary to operate safely.
“In Massachusetts, we support law enforcement doing legitimate criminal investigative work, and agencies doing that work can request confidential plates. But that’s not what we are seeing from ICE and its unconstitutional tactics.”
Operational risks are concrete, the DOJ argues: identified government vehicles can be tailed from job sites to private addresses, witnesses and protected persons can be exposed, and ongoing investigations can be derailed. The department’s warnings described a pattern of harassment against federal agents and highlighted the real dangers of an identifiable fleet in hostile environments.
The core legal question the courts will decide is straightforward on paper but consequential in practice: can a state lawfully withhold standard operational tools from federal agencies because it opposes a particular mission? The states say they can; the federal government says the Constitution says otherwise. The answers will come from the judges who take up these cases, and those rulings will shape how far states may go in resisting federal immigration enforcement.
